Sen. Dianne Feinstein has called for a federal investigation into gas prices in California because she doesn't think they are related to supply and demand.
Californians are paying an average of $4.668 a gallon, the highest price in the nation. Many motorists are paying over $5.
Feinstein says that paying hundreds of dollars every time you fill your tank is unthinkable. For the second time in the last few months, the California Democrat has sent a letter to the Federal Trade Commission asking for an immediate probe.
She also asked in August when gas was 45 cents cheaper.
According to Triple-A, the average price in Chico/Paradise Monday morning was $4.52 a gallon, compared to $4.10 one week ago.
In Redding, the average price is $4.59, compared to $4.17 one week earlier.
Gov. Jerry Brown over the weekend ordered state smog regulators to allow winter-blend gas to be sold three weeks early in the state.
Experts are predicting prices will climb to $4.85 before coming down.